Invention Grant
US08407949B2 Screw-in ground anchor 失效
拧入地锚

Screw-in ground anchor
Abstract:
A foundation driller for anchoring of components in soil is provided that includes an apparatus in which the foundation driller comprises a base body with at least one cylindrical area and at least one cutting blade that provides forward advancement, in which the base body comprises at least two cylindrical areas with different diameters, wherein the area nearer to the soil has a smaller diameter and the at least one cutting blade providing forward advancement is attached at the area nearer to the soil and has an even incline.
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